It's literally a clone of the craving vapor chip. every component even the logos and all.
this guy did a write up
http://daisychainvaper.com/hexohm-3-0-authentic-vs-clone/
but it's a little shilly to me or he had a different clone. the one i got (you can see in my video looks clean and has the connectors screwed in not soldered just like the authentic. The clone he got is way different then the one I did. even the labeling on the chip so it could be a worse version of a clone or something else.
You can buy a good one for under 200 bucks easily. actually under 150. If you wanted to make it yourself under 100. the parts from big al are about 40-50 bucks total for everything needed. then you go the box (alpinetech) for about 20. throw in another 40 for laser engraving and you are around 100 for an enrgaved one or 60ish for a basic one. Even Mikail himself is selling them for under 150 in this thread
It's not PWM I haven't tried a resistance that low but quite a few regulated mods will fire down to .05
You can see in the results (since I did review it and test it and all)
where the voltage output changes at 100 setting when resistance goes down. it's the protections and limits kicking in just like any regulated mod. If it was unregulated that wouldn't happen
On top of that a PWM looks like this on an oscilloscope
the hexohm V3 looked like this
As far as the designs go, You can get a clone that looks exactly the same as the authentic , it just won't have a voltmeter (which the authentic doesn't either)